Free SFTP client code for Mac?
lazarus / 38-Networking and Web Programming

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AnthonyTekatch · 2021-12-30 23:56

Is there a free SFTP client code/example that can be used in
Lazarus/Freepascal on a Mac?

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trev · 2021-12-31 01:15

Apple does not have an API for either FTPS or SFTP, although on macOS
you may be able to make some headway by invoking the sftp command-line
tool.

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AnthonyTekatch · 2021-12-31 02:25

Quote from: trev on December 31, 2021, 02:15:32 amApple does not have
an API for either FTPS or SFTP, although on macOS you may be able to
make some headway by invoking the sftp command-line tool.

I did get the command line running with Runncommand using the keygen
password-free method, but in this case I need to sign into a server
that I do not have the ssh key for and pass along the password to
sftp. And, I read that it is frowned upon to be sending text passwords
on the command line.

I suppose I can use the TProcess method for sending the password when
asked.

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PierceNg · 2021-12-31 02:40

Quote from: AnthonyTekatch on December 31, 2021, 12:56:48 amIs there a
free SFTP client code/example that can be used in Lazarus/Freepascal
on a Mac?

Github lists three Delphi wrappers for libssh2. Not clear whether they
work with FPC but good for reference if you are handy with FPC FFI.
https://github.com/topics/libssh2?l=pascallibssh2 is known to work on
MacOS.

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AnthonyTekatch · 2022-01-02 02:00

Quote from: PierceNg on December 31, 2021, 03:40:20 amGithub lists
three Delphi wrappers for libssh2. Not clear whether they work with
FPC but good for reference if you are handy with FPC FFI.
https://github.com/topics/libssh2?l=pascallibssh2 is known to work on
MacOS.

Thank you for your suggestion.  I'm not handy with FPC FFI, but I'll
read about it anyway.

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rvk · 2022-01-02 15:39

If you can get LibSSH2 for the mac working (like PierceNg mentioned)
you can start by looking at SimpleSFTP.pas from
http://synapse.ararat.cz/files/contrib/ (download sftp.zip there). The
'problem' is that that one is using CryptLib (which isn't freely
distributable).

I've got a working example (attached) with SimpleSFTP.pas for
libssh2.dll.
I Tested it under Windows with test.rebex.net port 22.
There are other SFTP test-sites for clients here:
https://www.sftp.net/public-online-sftp-servers

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AnthonyTekatch · 2022-01-11 16:00

Thanks for your help, I will dig into that later.

I took the easy way out for now and got expect to do the sftp password
entry on Linux and a Mac:
https://forum.lazarus.freepascal.org/index.php/topic,7610.msg430509.ht
ml#msg430509